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(No Model.) 2 Sheets-Sheet 1.

' J. G. MoLAGHLA-N.

Harvesting Machine.

No. "242,833. Patented June 14,1881.

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(No Model.)

J. 0. MOLAOHLAN. Harvesting Machine.

Patented June 14, 1881.

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UNITED 1 STATES PATENT OFFICE.

JOHN G. MCLAOHLAN, OF BRANTFORD, ONTARIO, CANADA, ASSIGNOR TO A. HARRISSON & 00., OF SAME PLACE.

HARVESTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 242,833, dated June 14,1881. Application filed January 25, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN CAMPBELL Mc- LAGHLAN, of the city of Brantford,in the.

' inafter explained.

Figurel is a perspective view, exhibiting the portions of my machine towhich my improvements relate. Fig. 2 is a detail showing a portion ofthe frame and table with the tilting. lever and grain-wheel-adjustinglever. Fig. 3 is a detail showing the formation of the pulley forcarrying the grain-wheel-liftin g chain. Figs. 4 and 4. are detailsshowing a portion of the frame and tongue with the tilting-lever andgrain-wheel-adjustin g lever. Fig. 5 is an end view of the groovedratchet sheaf employed with the lifting-lever. Figs. 6 and 6 are detailsof the grain-wheel arm and con- Fig. 7 is a detail, showing manner ofconnecting the chain to the grain-wheel arm.

In the drawings like letters indicate corresponding parts in eachfigure.

A is the main frame of the machine; B, the pole, provided with apole-block, 0, made to form one member of the hinge D, which connectsthe pole to the main frame A. g

E is a tilting-lever bolted to the flange c of the pole-block G, asindicated in Fig. 4. The tilting-lever E extends back to within easyreach of the drivers seat F, and is provided with the ordinary hingedrack, G.

H is a ratchet-pawl hinged to the tilting-lever E, and made to engagewith the ratchetteeth on the grooved ratchet-sheaf I. This pawl H has acircular slot, h, through which the bent end of the lifting-rod 11passes (see Figs. 4 and 5) to the lever J, where it enters a verticalslot, 0, in the said lever, and is secured thereto by a nut and washeror other suitable means. The lifting-rod iis connected to the upper endof the leverJ by the ordinary pivoted band-plate, f, and is arranged, asdescribed, for the purpose of lifting the pawl.

the pawl'lzl is fastened, as represented.

It will be noticed in Figs. 4 and 5 that the inside face of theratchet-sheaf I is provided with a circle of projecting stop blocks,- M.These blocks are placed in the position shown for the purpose ofconnecting the lever J to the ratchet-sheaf I, as will be understood byexamining the figuresreferred to, particularly Fig. 5, in which it willbe seen that the lever J can be pressed against the ratchet-sheaf I, asshown in dotted lines, so as to come in contact with the blocks M, ormay be withdrawn therefrom, as shown in the full lines of this When sowithdrawn this lever works freely on its pivot, the slot h in the pawl Hpermitting the movement. It may be mentioned here that by passing theliftingrod '5 through this slot the pawl H can be lifted, no matter atwhat angle the lever J may at the time be. A chain, N, is secured in theordinary way to the ratchet-sheaf I, and extends back over thepitman-head, where it passes over pulleys O and P, shaped as shown inFig. 3, the pulley Obein g held in the casting which covers the pitman'to the pulley P at the bottom of the rake-jack stand. Their relativeposition is clearly shown in Fig. 2. From the pulley P the chain extendsto the grain side of the table Q, where it passes over another pulley,similar to O and P, and extends-up to the grain-wheel arm R, as shown inFig. 6. In order to secure the chain N to the grain-wheel arm, I employan eye pin, S, which passes through a hole in the flange r in thegrainwheel arm, and is held there by the clamp T.

It will be noticed on reference to Figs. 6 and 7 that the chain N passesup behind the grainwheel arm in a recess, 1*, therein, (see Fig. 6,) andis connected to the eyepin S on the top wheel-arm. By this connection itwill be seen that the weight of the machine holds the pin in position.

On reference to Fig. 6 it will be noticed that the point of the castingU to which the grainwheel arm is pivoted is formed into a wedgeshapedshield, V, extending over the cutterbar. This shield not only protectsthe end of the cutter-bar from the dirt which would otherwise be thrownon it from the grain-wheel, but also serves as a guard to divide thegrain and keep it clear of the grain-wheel.

From the drawings it will be seen that my invention relates to thatclass of harvestingmachines having a lever-seat arranged to adjust theinside of the machine, and in which the finger-beam is bolted rigidly tothe main frame carrying the cutting apparatus, crankhead, andconnecting-rod, so that all. these parts retain their relative positionwhen the cutting apparatus is adjusted. As this form of construction iswell understood, it is not necessary to enter into an explanation ofthis part of the machine. It will, however, be seen that the driver onthe seat F can, by seizing the tilting-lever E, raise the inside of themachine and by the same lever tilt the guards up or down to gatherlodged grain, and at the same. time impart, in a measure, a verticaladjustment to the outside of the machine. By bolting a metallic frame,W, to the fin ger-beam and to the frame the connection between thetongue and finger-bar is very much strengthened. This metallic frame hasa hinge, w, as shown, to which the diagonal brace W is connected. Thisconnection permits the free adjustment of the machine without affectingthe connection of the diagonal brace to the tongue, and very muchstrengthens this port-ion of the machine.

Having now described the general construction of that part of themachine to which my.

improvements relate, a few words will suffice to explain theiroperations.

As the graiu-wheel-adjustin g chain connects the grain-wheel arm R- tothe ratchet-sheaf I, any movement of this ratchet-sheaf raises or lowersthe grain-wheel side of the machine. In order to raise the grain-wheelside of the machine, the driver presses the adjusting-lever J againstone of the blocks M, and, drawing upon it, causes this sheaf to revolveon its center, thereby drawing up the chain and raising the grain-wheelside of the machine as desired. In order to take hold of the next blockM, the lever J is pushed over the sheaf, as indicated in Fig. 5, when itcan be thrown forward freely and-a fresh block seized, repeating theoperation till the grain-wheel side of the machine is raised as far asdesired. When the grainwheel side of the machine is to be lowered thelever J is pressed against one of the blocksM sufficiently to take thepressure off the pawl H, when the lifting-rod can be pressed up and thepawl raised. The lever J is then pushed forward and the chain N paidout, so as to allow the grain-wheel side of the machine to fall asdesired. If it is necessary to let this side of the machine down fartherthan the slot h permits, the pawl H is allowed to engage with theratchet-teeth, and the lever J, being thrown clear of the block it maybe pressing against, is drawn back to the next block.

The construction is shown so clearly in the drawings that it is hardlynecessary to mention here that moving the tilting-lever to tilt themachine imparts a vertical adjustment to the grain-wheel side of themachine, owing to the fact that the chain N connects this lever to thegrain-wheel arm, as shown.

From the fact that the lever J is pivoted upon the tilting-lever it willbe seen that the grain-wheel side of the machine can be adjusted withoutaffecting the inside.

As shown in Fig. 3, it will be seen that the chain-pulleys 0 and P areformed so that the chain shall lie perfectly flat on the said pulley, agroove heingcut to receive the link passing edgewise over the pulley,which permits the link lying flat to rest on the flanges of the pulleyon either side of the said groove.

What I claim as my invention is- 1. In harvesting-machines, atilting-lever rigidly connected to the hinged pole or tongue of themachine, in combination with the grainwheel-adjusting chain, so arrangedthat in tilting the machine the movement of the tiltinglever impartssimultaneously a vertical adj ustment on the grain-wheel side of themachine.

2. In harvesting-machines, a tilting-lever rigidly connected to thehinged pole or tongue of the machine, in combination with a"grainwheel-adjusting lever pivoted on the tiltinglever, and soconnected to the grain-wheel that a vertical adjustment can be impartedto the grain-wheel side of the machine without afiectin g the inside.

3. In harvesting-machines, a ratchet-sheaf pivoted to the tilting-lever,and having attached to it the grain-wheel-adjusting chain, incombination with a ratchet-pawl pivoted to the tilting-lever andoperated by the grainwheel-adj ustin g lever, substantially as and forthe purpose specified.

4.. In a harvesting-machine having a leverseat arranged to adjust theinside of the machine, a tilting-lever rigidly fastened to the hingedtongue or pole of the machine, in combination with a rack bar connectedto the main frame of the machine, and a chain connecting thetiltinglever to the grain-wheel, substantially as described.

5. In a harvesting-machine, a chain, N, attached to the grain-wheel armR and. passing over the grooved pulley P, located at the base of therake-jack stand, and grooved pulley O on the pitman-head cover, incombination with the ratchet-sheaf I, pivoted on the tilting-lever E,and operated by the lever J, substantially as and for the purposespecified.

6. The combination, with the cutter-bar, of the casting U, terminatingin awedge-shaped flange, shield V, extending over the outer end IIO ofthe cutter-bar, and forming a grain-divider, and grain-wheel arm It,pivoted to said casting, substantially as described.

7. The combination, with the pivoted grainwheel arni R, provided with arecess, 1", and flange r, similarly recessed, of the eyebolt S, passingthrough a hole in the flange, clamp T, and chain N, substantially asdescribed, and for the purpose set forth.

8. In a harvesting-machine, a pawl, H, pivoted to the tilting-lever E,and having a slotted passage-way, it, cut in it, as shown,'incombination with the lifting-rod t connected to the lever J, asdescribed, and operated for the purpose of throwing the pawl in and outof gear.

9. In a harvesting-machine, a grain-wheeladjusting chain, N, connectedto the ratchetsheaf I, pivoted on the tilting-lever E, and pre ventedfrom revolving in one direction by the slotted pawl H, with blocks M onthe face of 20 the said sheaf, in combination with the lever J, pivotedto the tilting-lever E on the same center as the sheaf I, and providedwith a lifting-rod, 1;, passing through a slot, h, in the pawl H, andsecured to thelever J substan- 25

